Microscopically, the tumors were composed of both carcinoma and sarcomatous elements.Usually the carcinomatous element formed squ...

• 光镜下组织学观察常可见肉瘤和癌两种成分并存,癌多为鳞状细胞癌和腺癌,肉瘤以骨或软骨肉瘤为主。